F2P mobile game Age of Empires: World Domination announced

Microsoft's unveiled a new Age of Empires game for mobile devices, called Age of Empires: World Domination.

Due this summer (on iOS, Android and Windows Phone), World Domination slims the real-time strategy formula into something that looks simpler and something that's free-to-play.

There are Vikings, Celts, Franks and Huns factions to choose between, and you can build structures as well as direct units in battle. There's not much else to go on for the time being, except for a trailer and a few screenshots.